Amplitude is the measure of the amount of rotation in the swing of the balance wheel, in either direction, expressed in degrees,typically in the range of about 270 to 315 degrees. When amplitude is too high, you get knocking or rebanking. An amplitude of 270 means that a point on the balance wheel is turning 3/4 of a full circle. As amplitude hits 360, the wheel is making a full rotation, and.. Read More